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  <h1 class="topictitle1">步骤9：登录iSCSI启动器</h1>
  <div>
   <p>在以太网组网场景下，如果想要使用SAN传输模式或基于OceanStor Dorado LUN建立的Datastore的虚拟机磁盘需要使用存储层备份模式时，请参考本章节在代理主机上登录iSCSI启动器。</p>
   <div class="section">
    <h4 class="sectiontitle">前提条件</h4>
    <p>代理主机已安装iSCSI启动器（iscsi-initiator-utils）。具体操作请参见《ProtectAgent安装指南》中的“<span>安装iSCSI启动器（适用于VMware）</span>”章节。</p>
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   <div class="section" id="vmwate_gud_0110__section495264112597">
    <h4 class="sectiontitle">操作步骤</h4>
    <p id="vmwate_gud_0110__p125071013014">以下操作以生产存储设备为OceanStor Dorado为例：</p>
    <ol id="vmwate_gud_0110__ol166880319118">
     <li id="vmwate_gud_0110__li768819316116"><a name="vmwate_gud_0110__li768819316116"></a><a name="li768819316116"></a><span>登录ESXi Datastore对应的生产存储设备，查询iSCSI逻辑端口，获取逻辑端口IP。</span><p></p>
      <ol type="a" id="vmwate_gud_0110__ol7935174819810">
       <li id="vmwate_gud_0110__li59351948085">登录DeviceManager。</li>
       <li id="vmwate_gud_0110__li1051415181795">选择“服务 &gt; 网络 &gt; 逻辑端口”。</li>
       <li id="vmwate_gud_0110__li785518500912">在信息显示区，查询<span class="uicontrol" id="vmwate_gud_0110__uicontrol1119815346109">“数据协议”</span>为<span style="color:#282B33;">iSCSI</span>的逻辑端口，记录逻辑端口IP。</li>
      </ol> <p></p></li>
     <li id="vmwate_gud_0110__li249019343218"><span>在代理主机上，依次执行以下命令，登录iSCSI启动器。</span><p></p><pre class="screen" id="vmwate_gud_0110__screen1594352115">iscsiadm -m discovery -t st -p <em id="vmwate_gud_0110__i135193711122">IP</em></pre> <pre class="screen" id="vmwate_gud_0110__screen426175515418">iscsiadm -m node -l -p <em id="vmwate_gud_0110__i118665577419">IP</em></pre>
      <div class="note" id="vmwate_gud_0110__note14972085814">
       <img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span>
       <div class="notebody">
        <p id="vmwate_gud_0110__p89721781284">命令中的<em id="vmwate_gud_0110__i1264917214815">IP</em>请根据<a href="#vmwate_gud_0110__li768819316116">1</a>中获取的实际逻辑端口IP替换。</p>
       </div>
      </div> <p id="vmwate_gud_0110__p1508137853">回显类似如下：</p> <p id="vmwate_gud_0110__p628692817115"><span><img id="vmwate_gud_0110__image7487830152113" src="zh-cn_image_0000001839267077.png"></span></p> <p></p></li>
     <li id="vmwate_gud_0110__li88571715310"><span>在代理主机上，执行以下命令，查看session信息，确认生产存储设备的IQN状态在线。</span><p></p><pre class="screen" id="vmwate_gud_0110__screen661813118212">iscsiadm -m session</pre> <p id="vmwate_gud_0110__p18474332824">如果回显包含逻辑端口信息，表示IQN状态在线。</p> <p id="vmwate_gud_0110__p64391540131719"><span><img id="vmwate_gud_0110__image117131934181514" src="zh-cn_image_0000002132525593.png"></span></p> <p></p></li>
     <li id="vmwate_gud_0110__li1140194514210"><a name="vmwate_gud_0110__li1140194514210"></a><a name="li1140194514210"></a><span>在代理主机上，执行以下命令，获取代理主机的IQN。</span><p></p><pre class="screen" id="vmwate_gud_0110__screen1161016556219">cat /etc/iscsi/initiatorname.iscsi </pre> <p id="vmwate_gud_0110__p1074682119416">回显类似如下：</p> <p id="vmwate_gud_0110__p2078715245612"><span><img id="vmwate_gud_0110__image320122515616" src="zh-cn_image_0000002096956652.png"></span></p> <p></p></li>
     <li id="vmwate_gud_0110__li1868713566315"><span>在ESXi Datastore对应的生产存储设备上，确认代理主机的IQN状态是否在线。</span><p></p>
      <ol type="a" id="vmwate_gud_0110__ol6119242222">
       <li id="vmwate_gud_0110__li15113246221">登录DeviceManager。</li>
       <li id="vmwate_gud_0110__li94481632162213">选择“服务 &gt; 块服务 &gt; 主机组 &gt; 启动器 &gt; iSCSI”。</li>
       <li id="vmwate_gud_0110__li119268344233">在<span class="uicontrol" id="vmwate_gud_0110__uicontrol13515191112248">“iSCSI”</span>页签，查询<a href="#vmwate_gud_0110__li1140194514210">4</a>获取的IQN，确认IQN状态是否为在线。</li>
      </ol> <p></p></li>
    </ol>
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